I've been watching the Brexit debate unfold from "across the pond" with great interest (a lot of us have, actually). As someone who lived in the UK for a while, I see it as a second home. Therefore I find myself with an emotional stake in this.
My feeling, shared by many here it seems, is that you should leave. You're obviously not happy with your relationship with the EU, and why you would opt to remain shackled to something so undemocratic and restrictive is hard to understand. That choking, bureaucratic mass pulls you in ever closer by the decade. It eats away at your sovereignty, your identity, and castrates your economic and democratic freedom. Now you're being given what will probably be a once-in-a-lifetime opportunity to leave.
Use it.
Will there be economic repercussions? Probably, but Britain is a strong nation, with strong diplomatic ties outside of Europe. See this as an opportunity to start something fresh, to build beyond Europe, and win back some pride.
What great nation can't even determine most of its own economic policies, control its own borders, or decide some of the most basic things about products and services?